This is an ongoing issue, all reports have 1 thing in common, which is having 5 keys in your inventory and one in the postmaster. Currently, bungie has only released one article on this subject. In their article it states players may lose the key in their postmaster, but not all the keys. Here is the article: https://www.bungie.net/mobi/en/about/Article?id=45388 Unfortunately, bungie will not replace lost or deleted items or characters for any reason. [url=https://www.bungie.net/en/Help/Article/12211]Deleted item and Character policy[/url]